Primary tabs

Does anyone have any tips on creating TTF files for @font-face usage? I have a script going in fontforge to generate all the basic formats for online (ttf,eot,woff,svg) but my one issue is how to get the TTF into a protected format. I have seen people export the TTF before where you cannot just open it locally, or install it. I know its not 100% bullet proof, but I am just curious does anyone know how to do this, preferably in fontforge?